The optional attribute list specifies the attributes to return in the entries found by the search. In addition to identifying attributes by name such as cn sn mail and so forth, you can use the following notations, too. * Return all user attributes such as cn, sn, and mail. + Return all operational attributes such as etag and pwdPolicySubentry. @objectclass Return all attributes of the specified object class, where objectclass is one of the object classes on the entries returned by the search. 1.1 Return no attributes, only the DNs of matching entries.